Resilient Power-Constrained Embedded Communication Terminals (ResPECT)

在网络世界弹性的广泛主题中，ResPECT专注于所有网络系统的核心要素：网络物理系统中的传感器和执行器节点。直到今天，通信还被理解为嵌入式系统的一种辅助功能。该系统本身具有中断容忍度，能够处理电源故障或在有限范围内甚至硬件问题，但通信不是整体设计的一部分。在最好的情况下，它可以利用潜在的系统弹性。ResPECT开发了一个完整的操作系统和通信协议栈，假设传递信息（执行器控制数据的接收或传感器数据的发送）是所有网络组件的核心任务。因此，它必须成为操作系统管理功能的一部分。ResPECT建立在两个支柱上：非易失性内存和事务性操作。近年来，非易失性存储器已经发展成为存储层次结构中的一个重要元素。甚至具有完全非易失性存储器的嵌入式平台也变得可以想象。与社交通信不同，网络通信在设计上是事务性的：数据是收集的，在延迟、容错、能量消耗等渠道约束和年龄等内容约束下，信息的价值在通信伙伴之间传递。然而，除了操作系统之外，这种通信还面临许多外部中断和影响。此外，中断的持续时间可能会对已经完成的事务的有效性产生严重影响，例如物理连接的持久性。因此，复工时必须考虑所有这些问题。因此，ResPECT将通过对操作系统和通信专家的跨学科研究，开发一个基于事务的模型，并将应用非易失性存储器，以确保事务流中的状态在任何时间点都是已知的，并且可以并且将被持久存储。这种监视和存储功能必须非常高效（相对于能耗和要存储在非易失性存储器中的数据量而言），因此必须作为操作系统的核心功能来实现。为了确保通用性并使模型可用于各种未来平台，ResPECT将专注于ip网络，并使用通常作为WAN、LAN或PAN（广域网、局域网或个人局域网）运行的通信网络。

Within the wide subject of resilience in networked worlds ResPECT focuses on a core element of all networked systems: sensor- and actuator-nodes in cyber-physical systems. Communication up to today is understood and implemented as an auxiliary functionality of embedded systems. The system itself is disruption-tolerant and able to handle power failures or in a limited scope even hardware problems, but the communication isn't part of the overall design. In the best case it can make use of the underlying system resilience. ResPECT develops a holistic operating system and communication protocol stack, assuming that conveying information (the receipt of control data for actuators or the sending of sensor data) is a core task of all networked components. Consequently it must become a part of the operating system's management functionality. ResPECT builds on two pillars: Non-volatile memory and transactional operation. Non-volatile memory in recent years has evolved towards a serious element of the storage hierarchy. Even embedded platforms with exclusively non-volatile memory become conceivable. Network-communication, other than social communication, is transactional in its design: Data is collected and under channel constraints like latency, error-resilience and energy consumption and content constraints like age and therewith value of information is transmitted between the communication partners. Other than for operating systems this communication, however, faces many external disruptions and impacts. In addition, the duration of a disruption can have severe implications on the validity of already completed transactions like the persistence of the physical connection. Hence on resumption all this has to be considered. ResPECT consequently will -- by interdisciplinary research of operating system and communication experts -- develop a model based on transactions and will apply non-volatile memory to ensure, that states during the flow of transactions are known at any point in time and can and will be stored persistently. This monitoring and storing functionality must be very efficient (with respect to the energy consumption as well as to the amount of data to be stored in non-volatile memory) and hence be implemented as a core functionality of the operating system. To ensure generalizability and to have the model available for a variety of future platforms, ResPECT will focus on IP-networks and use communication networks which typically are operated as WAN, LAN or PAN (wide, local or personal area networks).